Table 2.

Correlation between 24-h urinary protein excretion (24-h UP), PCR, and ACR and severity of IgA nephropathy.

Characteristics	24-h UP		PCR		ACR
	g/d	p	g/g	p	g/g	p
CKD stage		<0.001		<0.001		<0.001
1	0.82 (0.43, 1.60)		0.83 (0.43, 1.53)		0.46 (0.23, 0.98)
2	1.01 (0.49, 2.08)		0.84 (0.47, 1 .56)		0.49 (0.29, 0.95)
3	1.48 (0.60, 3.15)		1.24 (0.69, 2.54)		0.83 (0.39, 1.96)
4	3.15 (1.58, 4.31)		2.90 (1.47, 4.06)		1.61 (0.87, 3.01)
Hypertension		<0.001		<0.001		<0.001
With	1.54 (0.68, 2.72)		1.310 (0.60, 2.15)		0.78 (0.41, 1.45)
Without	0.86 (0.46, 1.71)		0.84 (0.43, 1.63)		0.47 (0.27, 1.08)
Oxford classification
M lesion		0.092		0.055		0.113
1	1.10 (0.58, 2.37)		1.00 (0.64, 2.05)		0.63 (0.31, 1.40)
0	0.97 (0.48, 2.00)		0.92 (0.47, 1.80)		0.53 (0.28, 1.20)
E lesion		<0.001		<0.001		<0.001
1	2.11 (0.82, 5.67)		2.24 (0.84, 4.21)		1.11 (0.39, 2.41)
0	0.95 (0.48, 1.91)		0.89 (0.47, 1.70)		0.53 (0.28, 1.14)
S lesion		0.667		0.403		0.401
1	0.99 (0.51, 1.91)		0.94 (0.54, 1.79)		0.51 (0.31, 1.06)
0	0.97 (0.46, 2.26)		0.88 (0.42, 1.91)		0.61 (0.25, 1.41)
T lesion		<0.001		<0.001		<0.001
1 or 2	1.93 (0.67, 3.71)		1.70 (0.73, 2.79)		0.97 (0.42, 2.07)
0	0.94 (0.48, 1.85)		0.88 (0.47, 1.66)		0.51 (0.28, 1.11)